Pen point sealing structure for cosmetic pencil
By incorporating a sealing ring and a transition ring into the makeup pen, the problem of dust and moisture entering through the gap between the pen cap and the pen tip is solved, achieving a better sealing effect, maintaining the purity of the cream, and extending the lifespan of the makeup pen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU IKEDA COSMETICS PACKAGE CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional makeup brushes have gaps between the cap and the tip, which allows dust and moisture to easily get in, affecting the use of the product.
A sealing structure for a cosmetic pen tip has been designed, including a sealing ring and a transition ring. By combining the sealing ring with a snap-fit groove and an annular groove, the fit and fastening force between the pen cap and the pen tip are enhanced, gaps are filled, and the possibility of external impurities entering is reduced.
It effectively prevents dust and moisture from entering the brush tip, maintains the purity and quality of the cream, extends the lifespan of the makeup brush, and improves application efficiency and the naturalness of the makeup effect.
Smart Images
Figure CN224165892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cosmetic pen technology, and more specifically, it relates to a sealing structure for the tip of a cosmetic pen. Background Technology
[0002] Makeup brushes are an important category of makeup tools. They are multifunctional makeup tools suitable for filling in facial contours. Makeup brushes can be used with various cosmetics to help create a natural and delicate makeup effect.
[0003] Currently, a makeup pen consists of a cap, a tip, a barrel, and a tail cap. Each part of the makeup pen has its own function: the tip is used to hold the makeup cream, the cap is used to protect the cream from contamination, the barrel is used for holding and making it easy for the user to use, and the tail cap is used to protect the end of the barrel.
[0004] However, traditional cosmetic brushes use a simple combination of cap and tip to protect the product, but there is still a gap between the cap and tip. This gap allows dust and moisture to easily enter the tip, affecting the product and ultimately its usability. A new sealing structure for cosmetic brush tips is proposed to improve this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sealing structure for the tip of a cosmetic brush.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A sealing structure for a cosmetic pen tip includes a pen cap assembly, a pen barrel disposed below the pen cap assembly, a tail cap disposed on the outer side of the end of the pen barrel, a pen tip assembly disposed inside the pen cap assembly, the pen tip assembly being inserted into the pen barrel, and a sealing ring sleeved on the outer wall of the pen tip assembly, the sealing ring being disposed at the middle position between the pen cap assembly and the pen tip assembly.
[0008] The pen cap assembly includes a pen cap body, which is hollow inside, and a snap-fit groove is formed on the inner side wall of the pen cap body.
[0009] The pen tip assembly includes a pen tip body, and an annular groove is formed on the outer side wall of the pen tip body. The sealing ring is disposed inside the annular groove.
[0010] By adopting the above technical solution, when the pen cap body is placed on the outside of the pen tip body, the sealing ring has a certain elasticity and friction, which can increase the fit and fastening force between the pen cap body and the pen tip body, making the pen cap body more tightly fixed on the container and less likely to loosen or fall off. At the same time, the sealing ring can fill the gap between the pen cap body and the pen tip body, reducing the possibility of external impurities entering the container and maintaining the purity and quality of the substances inside the pen tip body.
[0011] The present invention is further configured such that: the sealing ring is circular in shape, the sealing ring is located in the middle position between the annular groove and the snap-fit groove, and the inner and outer sides of the sealing ring are respectively adapted to the annular groove and the snap-fit groove.
[0012] The present invention is further configured such that: the end of the pen tip body is inclined, and the interior of the pen tip body is hollow.
[0013] The present invention is further configured such that: the inside of the pen tip body is provided with a cavity for placing cosmetic cream, and the pen cap body is sleeved on the outside of the pen tip body to protect the cream.
[0014] The present invention is further configured such that: a transition ring is provided at the end of the annular groove away from the pen tip body, the transition ring is sleeved on the outside of the pen tip body, and the transition ring and the pen tip body are integrally formed.
[0015] By adopting the above technical solution, the outer side of the transition ring is set in an arc shape, and the transition ring is integrally formed with the pen tip body. When the pen cap body is placed on the outside of the pen tip body, the arc shape of the transition ring can play a guiding role, helping the user to more accurately align the pen cap body with the pen tip body. In addition, the arc shape of the transition ring helps to achieve a better sealing effect. It can fit more tightly with the corresponding parts of the pen cap body and the pen tip body, fill any gaps that may exist, reduce the possibility of air, dust and moisture entering the pen body, prevent the pen tip of the cosmetic pen from drying out, deteriorating or becoming contaminated, and extend the service life of the cosmetic pen.
[0016] The present invention is further configured such that: a limiting ring is provided at the end of the transition ring away from the annular groove, and a mounting seat is provided at the end of the limiting ring away from the transition ring, wherein the mounting seat and the limiting ring are integrally formed.
[0017] The present invention is further configured such that: the mounting base is hollow inside, and a pen barrel is provided on the outer side of the mounting base, and the pen barrel is inserted into the mounting base.
[0018] By adopting the above technical solution, the limiting ring is adapted to the end of the pen barrel. When the mounting seat is inserted into the pen barrel, the limiting ring can accurately limit the position of the mounting seat inserted into the pen barrel, ensuring that the relative position between the pen tip assembly and the pen barrel is fixed and accurate. At the same time, it can reduce the possibility of the pen tip assembly being over-inserted into the pen barrel and damaging the internal structure of the pen tip assembly or the pen barrel.
[0019] In summary, this application includes at least one of the following beneficial technical effects:
[0020] By setting two sealing structures, firstly, the transition ring and the pen cap body are combined to form the first sealing device. Then, the sealing ring is combined with the snap-fit groove and the annular groove to form the second sealing device. Since the pen tip body and the transition ring are integrally molded, when the transition ring is worn, the combination structure of the sealing ring with the snap-fit groove and the annular groove can continue to seal and protect the ointment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a sealing structure for the tip of a cosmetic brush according to the present invention.
[0022] Figure 2 for Figure 1 A schematic diagram of the explosion structure.
[0023] Figure 3 for Figure 2 A magnified structural diagram of area A in the middle.
[0024] Figure 4 This is a schematic diagram of the fitting structure between the pen tip assembly and the sealing ring in this utility model.
[0025] Figure 5 for Figure 4 A schematic diagram of the explosion structure.
[0026] Figure 6 This is a schematic diagram of the sealing ring in this utility model.
[0027] Figure 7 This is a schematic diagram of the pen cap assembly in this utility model.
[0028] Explanation of reference numerals in the attached drawings: 1. Pen cap assembly; 11. Pen cap body; 12. Snap-fit slot;
[0029] 2. Pen barrel;
[0030] 3. Tail cap;
[0031] 4. Pen tip assembly; 41. Pen tip body; 42. Annular groove; 43. Transition ring; 44. Limiting ring; 45. Mounting base;
[0032] 5. Sealing ring. Detailed Implementation
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0035] Please see Figure 1-7 The present invention provides the following technical solution:
[0036] Example 1, see Figures 1-3 A sealing structure for a cosmetic pen tip includes a pen cap assembly 1, a pen barrel 2 disposed below the pen cap assembly 1, a tail cap 3 disposed on the outer side of the end of the pen barrel 2, a pen tip assembly 4 disposed inside the pen cap assembly 1, the pen tip assembly 4 being inserted into the inside of the pen barrel 2, and a sealing ring 5 sleeved on the outer wall of the pen tip assembly 4, the sealing ring 5 being disposed in the middle position between the pen cap assembly 1 and the pen tip assembly 4.
[0037] The pen cap assembly 1 includes a pen cap body 11, which is hollow inside, and a snap-fit groove 12 is provided on the inner side wall of the pen cap body 11.
[0038] The pen tip assembly 4 includes a pen tip body 41, and an annular groove 42 is formed on the outer side wall of the pen tip body 41. A sealing ring 5 is disposed inside the annular groove 42.
[0039] The sealing ring 5 is circular and is located in the middle of the annular groove 42 and the snap-fit groove 12. The inner and outer sides of the sealing ring 5 are respectively adapted to the annular groove 42 and the snap-fit groove 12.
[0040] Specifically, when the pen cap body 11 covers the outside of the pen tip body 41, the sealing ring 5 has a certain elasticity and friction, which can increase the fit and fastening force between the pen cap body 11 and the pen tip body 41, making the pen cap body 11 more tightly fixed on the container and less likely to loosen or fall off. At the same time, the sealing ring 5 can fill the gap between the pen cap body 11 and the pen tip body 41, reducing the possibility of external impurities entering the container and maintaining the purity and quality of the substances inside the pen tip body 41.
[0041] The end of the pen tip body 41 is inclined, and the inside of the pen tip body 41 is hollow.
[0042] The pen tip body 41 has an internal cavity for holding cosmetic cream, and the pen cap body 11 is fitted onto the outside of the pen tip body 41 to protect the cream.
[0043] The slanted shape of the pen tip body 41 allows for a larger contact area between the cream and the skin, enabling it to cover a larger area at once during application, thus improving application efficiency. It also allows the cream to be distributed more evenly on the skin, reducing the number of times it needs to be applied, resulting in a more natural and adherent makeup effect. In addition, the slanted tube end of the pen tip body 41 provides support for the cream, reducing the possibility of breakage and extending the lifespan of the cream.
[0044] A transition ring 43 is provided at the end of the annular groove 42 away from the pen tip body 41. The transition ring 43 is sleeved on the outside of the pen tip body 41 and is integrally formed with the pen tip body 41.
[0045] The outer side of the transition ring 43 is set in an arc shape, and the transition ring 43 is integrally formed with the pen tip body 41. When the pen cap body 11 covers the outside of the pen tip body 41, the arc shape of the transition ring 43 can play a guiding role, helping the user to more accurately align the pen cap body 11 with the pen tip body 41.
[0046] In addition, the arc shape of the transition ring 43 helps to achieve a better sealing effect. It can fit more tightly with the corresponding parts of the pen cap body 11 and the pen tip body 41, fill any gaps that may exist, reduce the possibility of air, dust and moisture entering the pen body, prevent the pen tip from drying out, deteriorating or becoming contaminated, and extend the service life of the makeup pen.
[0047] According to the above device, the cosmetic pen can realize two sealing devices. First, the transition ring 43 and the pen cap body 11 are combined to form the first sealing device. Then, the sealing ring 5, the snap-fit groove 12, and the annular groove 42 form the second sealing device. Since the pen tip body 41 and the transition ring 43 are integrally formed, when the transition ring 43 is worn, the sealing ring 5, the snap-fit groove 12, and the annular groove 42 can continue to seal to protect the ointment.
[0048] The sealing ring 5 is made of rubber. Rubber has good elasticity and can form a tight seal between the pen cap body 11 and the annular groove 42. When the pen cap body 11 is tightened, the rubber sealing ring 5 can be compressed and fill the gap. Even if there are certain dimensional deviations or unevenness in the pen cap body 11 or the annular groove 42, the sealing effect can be ensured.
[0049] A limiting ring 44 is provided at the end of the transition ring 43 away from the annular groove 42, and a mounting base 45 is provided at the end of the limiting ring 44 away from the transition ring 43. The mounting base 45 and the limiting ring 44 are integrally formed.
[0050] The mounting base 45 is hollow inside, and a pen barrel 2 is provided on the outside of the mounting base 45. The pen barrel 2 is inserted into the mounting base 45.
[0051] The limiting ring 44 is adapted to the end of the pen barrel 2. When the mounting base 45 is inserted into the pen barrel 2, the limiting ring 44 can accurately limit the position of the mounting base 45 inserted into the pen barrel 2, ensuring that the relative position between the pen tip assembly 4 and the pen barrel 2 is fixed and accurate. At the same time, it can reduce the possibility of the pen tip assembly 4 being over-inserted into the pen barrel 2 and damaging the internal structure of the pen tip assembly 4 or the pen barrel 2.
[0052] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
Claims
1. A sealing structure for the tip of a cosmetic brush, characterized in that: The pen cap assembly (1) is provided below the pen cap assembly (1), and a pen barrel (2) is provided on the outer side of the end of the pen barrel (2). A pen tip assembly (4) is provided inside the pen cap assembly (1), and the pen tip assembly (4) is inserted into the pen barrel (2). A sealing ring (5) is provided on the outer wall of the pen tip assembly (4), and the sealing ring (5) is located in the middle position between the pen cap assembly (1) and the pen tip assembly (4). The pen cap assembly (1) includes a pen cap body (11), the pen cap body (11) is hollow inside, and a snap-fit groove (12) is provided on the inner side wall of the pen cap body (11). The pen tip assembly (4) includes a pen tip body (41), and an annular groove (42) is provided on the outer side wall of the pen tip body (41). The sealing ring (5) is disposed inside the annular groove (42).
2. The sealing structure for a cosmetic brush tip according to claim 1, characterized in that: The sealing ring (5) is configured as a ring shape. The sealing ring (5) is located in the middle of the annular groove (42) and the snap-fit groove (12). The inner and outer sides of the sealing ring (5) are respectively adapted to the annular groove (42) and the snap-fit groove (12).
3. The sealing structure for the tip of a cosmetic brush according to claim 1, characterized in that: The end of the pen tip body (41) is inclined, and the interior of the pen tip body (41) is hollow.
4. The sealing structure for a cosmetic brush tip according to claim 3, characterized in that: The pen tip body (41) has a cavity inside for holding cosmetic cream, and the pen cap body (11) is fitted on the outside of the pen tip body (41) to protect the cream.
5. The sealing structure for a cosmetic brush tip according to claim 4, characterized in that: A transition ring (43) is provided at one end of the annular groove (42) away from the pen tip body (41). The transition ring (43) is sleeved on the outside of the pen tip body (41), and the transition ring (43) and the pen tip body (41) are integrally formed.
6. The sealing structure for a cosmetic brush tip according to claim 5, characterized in that: A limiting ring (44) is provided at one end of the transition ring (43) away from the annular groove (42), and a mounting base (45) is provided at one end of the limiting ring (44) away from the transition ring (43). The mounting base (45) and the limiting ring (44) are integrally formed.
7. The sealing structure for a cosmetic brush tip according to claim 6, characterized in that: The mounting base (45) is hollow inside, and a pen barrel (2) is provided on the outside of the mounting base (45). The pen barrel (2) is inserted into the mounting base (45).